US Open Golf Tournament, Day 3 (June 15, 2013)

Images from the U.S. Open in Ardmore, Pennsylvania on Saturday, June 15, 2013.

Spectator Lukas Partridge, of Australia, walks along the course during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Julio Cortez)

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Paul Casey, right, of England, and Scott Langley walk to the first green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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John Huh, left, talks with his caddie, Zeke Salas, on the first tee box during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Darron Cummings)

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Scott Langley chips to the first green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Spectators Nancy Hansen, right, and Barbara Miller walk into the grandstand on the 18th green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Julio Cortez)

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Rory McIlroy, of Northern Ireland, lines up a putt during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Tiger Woods tees off on the eighth hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Marcel Siem, of Germany, hits out of a bunker on the first hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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David Lingmerth, of Sweden, watches his putt on the third green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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George Coetzee, of South Africa, reacts after putting on the first hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Kyle Stanley hits out of a bunker on the third hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Geoff Ogilvy, right, of Australia, talks with Bo Van Pelt on the way to the first tee during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Darron Cummings)

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Cheng-Tsung Pan, of Taiwan, chips onto the second green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)

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Padraig Harrington, of Ireland, hits down the first hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Russell Knox, of Scotland, reacts after putting on the first green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Rory McIlroy, right, of Northern Ireland, watches his tee shot with Tiger Woods during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Darron Cummings)

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Rory McIlroy, of Northern Ireland, chips onto the second green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)

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Padraig Harrington, right, of Ireland, and his caddie, Ronan Flood wait to tee off on the fourth during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Ryan Nelson reacts after missing a putt on the second hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)

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Russell Knox, of Scotland, tees off on the fourth hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Nicolas Colsaerts, of Belgium, hits out of a bunker on the first hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Ernie Els, of South Africa, watches his shot after hitting out of a bunker on the third hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Lee Westwood, of England, hits out of a bunker on the ninth hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)

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Luke Donald, of England, reacts after a birdie putt on the eighth hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)

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John Senden, of Australia, tees off on the ninth hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)

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Phil Mickelson reacts after a putt on the sixth hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Tiger Woods reacts after putting on the 18th hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Luke Donald, of England, tees off on the 14th hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Nicolas Colsaerts, of Belgium, hits down the 18th hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Darron Cummings)

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Phil Mickelson, left, and Luke Donald, of England, walk down from the 17th tee box during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Julio Cortez)

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Phil Mickelson walks to the 17th green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Julio Cortez)

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Charl Schwartzel, of South Africa, reacts after putting on the 18th hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Justin Rose, of England, waits to hit down the 18th fairway during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Darron Cummings)

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Steve Stricker reacts to a putt on the 18th green during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Charlie Riedel)

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Phil Mickelson reacts after missing a putt on the 18th hole during the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Morry Gash)

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Phil Mickelson jogs off the 18th green after the third round of the U.S. Open golf tournament at Merion Golf Club, Saturday, June 15, 2013, in Ardmore, Pa. (AP Photo/Gene J. Puskar)